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Zenith TVBR1342Z, Service Manual

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Zenith TVBR1342Z Service Manual Download Page 75

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL     .
REPLACE ONLY WITH PART NUMBERS SPECIFIED.

5-11

TVBR2000 SHEET 11

A

B

C

D

E

F

G

1

2

3

4

5

6

7

8

9

10

P/L = See parts list for part description    PROV = Provisional

13/19" Main Microprocessor Circuit

D1013

11EQS04N

D1005

11E1-EIC

D1002

1SS133

D1001

11E1-EIC

IC1002 PST600H

SYSTEM RESET IC

1

2

3

CP1005_1

52045-0545

1

2

3

4

5

R1005

2.7 1W

Q1005

SG-260

REEL SENS

1

2

3

4

Q1001

SG-260

REEL SENS

1

2

3

4

IC1099

P/L

EEP

ROM

IC

1

2

3

4

5

6

7

8

D1003

SID1050CM

Q1003

GP1S94L

MS_SEN B

1

2

3

4

Q1009

GP1S94L

MS_SEN A

1

2

3

4

SW1001

SPVF130100

1

23

4

IC1003

BA6955AN

LOADING MOTOR DRIVER IC

1

2

3

4

5

6

7

8

CP1004 TMC-J08P-B1

1
2
3
4
5
6
7
8

Q1013

PNA2604M010R

EOT SENSOR

X1001

12MHz

X1002

32.768KHz

L1001

2.2uH

C1064

470

16V

uF

C1058_1

100

6.3V

uF

C1001

100
25V

uF

C1003_1

1000

6.3V

uF

C1021

33
16V

uFA

C1020

10

16V

uF

C1028

0.1

uF

C1019

0.001 pF

C1048 18P pF

C1040 18P pF

C1047 18P pF

C1046 20P pF

C1050 20P pF

C1049 22P pF

C1038

820P

pF

C1065

0.1

uF

C1074

0.1

uF

C1066

0.1 uF

C1013 0.0039 uF

C1014

0.1

uF

C1041
0.1 uF

C1030

0.1 uF

C1072

1uF

C1060

150P

pF

C1029

0.01

uF

C1037

390P

pF

C1023

220P

pF

C1010

220P

pF

C1009

220P

pF

C1004

100P

pF

C1039

0.1

uF

C1035

200P pF

C1031

0.001 uF

C1034

0.1 uF

C1025

0.1

uF

C1022

0.1 uF

C1071

100P

pF

C1017

0.1

uF

C1051

2.2

uF

C1027

0.0039 uF

C1063

0.1

uF

C1002

0.001 uF

C1005

0.001 uF

C1044

220P pF
C1045

220P pF

C1061

150P

pF

C1062

0.1 uF

C1043 0.1

uF

C1026

0.1uF

C1042

0.1

uF

C1068

0.1

uF

R1046

4.7K

R1040

33K

R1047

4.7K

R1019

47K

R1024

1K

R1029

4.7K

R1028

4.7K

R1077

1K

R1020

22K

R1049

4.7K

R1001

3.3K

R1012

10K

R1039

18K

R1051

5.6K

R1032

10K

R1002

120

R1006

47K

R1079

22

1/4W

R1083

56K

R1087

56K

R1050

100

R1066

1K

R1075

4.7K

R1064

1K

R1009

560

R1013

560

R1036

4.7K

R1035

10

R1021

10

R1007

10

R1031

1K

R1053

220

R1008

1K

R1033

1K

R1017

33K

R1018

4.7K

R1016

270

1/4W

R101

1

2.2K

R1003

82K

R1078

470K

R1034

1.8M

R1004

1K

R1010

3.3K

R1038

220

R1042 220

R1044

3.3K

R1045

3.3K

C1032

220

6.3V

uF

C1015

47

10V

uF

C1016

22

16V

uF

C1018

4.7

50V

uF

Q1023

2SC2412K

X_RAY_SW

Q1002

2SC2412K

SENSOR SW

W895

W859

TP1001

SERVICE

W814

W810

Q1004

DTC124EuF

FF/REW_SW

Q1024

DTC143EuF

LED DRIVER

D1004

RD12FB

D1014

MTZJ5.1B

D1008

MTZJ6.8B

D1007

MTZJ6.8B

IC1001

OEC7043A

TIMER SYSCON MICON IC

11

0

100

11 12 13 14 15 16 17 18 19

2

20 21 22 23 24 25 26 27 28 29

3

30

31

32

33

34

35

36

37

38

39

4

40

41

42

43

44

45

46

47

48

49

5

50

51

52

53

54

55

56

57

58

59

6

60

61

62

63

64

65

66

67

68

69

7

70

71

72

73

74

75

76

77

78

79

8

80

81

82

83

84

85

86

87

88

89

9

90

91

92

93

94

95

96

97

98

99

TP1002

H.SW

CP1006

52045-0445

1
2
3
4

DEGAUSS_H

GND

POWER_FAIL

SDA

SCL

P.CON+5V

OSD_R

OSD_G

OSD_B

REEL_T

REEL_S

CAP_CTL

CENTLED

OSD_BLK

CYL_DRIVE

AT+12V

V.

REC_ST_H

DOC_XO_CTL

REC/EE/PB

TRICK_PB-H/EE-H

MOTOR_GND

TV_POWER_H

H.SW
DOC_XO_CTL
REC/EE/PB
SP/LP/EP-H

TRICK_PB-H/EE-H
SD_VIDEO
ENV_DET
VCR_A_MUTE

X_RAY

CTL+
CTL-
C_ROTARY
DUMMY_V.SYNC

VCR_A_MUTE

TAB_SW

V.REC_ST_H

TV_A_MUTE

COMP

SP/LP/EP-H

INPUT_SEL

CAP_FG

LM-

LM+

CYL_FG

HD

CYL_PG

X-RAY_TEST

LDM_F

LDM_R

VD

EOT

BOT

AFT_M
SCL
SDA

CENTLED

CTL-

OSD_R
OSD_G

CTL+

OSD_B

LM-

OSD_BLK

LM+

RESET

AT+5V_BACKUP
AT+5V

INPUT_SEL

VCR_POWER_H

TV_POWER_H

TV_POWER_H

TAB_SW

VCR_POWER_H

IIC_OFF

TV_POWER_H

C_ROTARY

REC_LED
T-REC_LED

H.SW

KEY_A
KEY_B
REMOCON_IN

CAP_F/R

SCL
SDA

DUMMY_V

.SYNC

REMOCON_IN

MS_SEN-A

MS_SEN-B

T-

REC_LED

ENV_DET

SEN_LED

REC_LED

IIC_OFF

AFT_M

KEY_A

KEY_B

LDM_R

LDM_F

COMP

EOT

BOT

TV_POWER_H
TV_A_MUTE

CYL_DRIVE

RESET

REEL_S

REEL_T

SEN_LED

MS_SEN-B

MS_SEN-A

CYL_FG

X_RAY
X-RAY_TEST

CYL_PG

TV_POWER_H

CAP_CTL

CAP_FG

CAP_F/R

NC

NC

NC

NC

NC

NC

NC

NC

NC

FROM/TO HEAD AMP

NC

NC

FROM/TO DECK

FROM/TO MICRO MOTOR

FROM/TO CAPSTAN DD UNIT

5.2

0

0

0

0

4.9

4.8 4.8 4.9

BOT

LDM-
LDM+

VCC

NC

CYL DRIVE

CYL PG

CYL +B

CYL FG

CYL GND

0

0

00

VSS

A2

A1

A0

SDA

SCL

TEST

VCC

5.2

5.1

0

GND OUT

IN

0

5.1

0

0

0

5.2

0

5.2

5.2

0

1.4 1.4 0

2.4 2.2

5.2 5.2 0

2.2

0

5.2 2.3 2.6 2.6 0

0.1 5.2 5.2 0

0

0

0

1.5

1.3

2.1

2.6

0

0

5.2

2.5

2.6

5.2

5.2

5.2

2.1

1.6

2.3

4.2

4.9

5.1

0

0

0

2.5

0

2.6

2.5

2.5

1.8

0

5.1

5.1

5.9

2.5

2.6

2.0

0

0.6

2.5

2.5

0.2

0

2.5

2.6

2.5

5.1

5.2

0

1.4

2.6

0.9

0.9

0.8

0

0

0

FG

VCO

GND

I LIMIT

CTL

VCC(5V)

0

0

12.1

0

0

10.8

0

10.9

12.1

POWER

SAVE

CONTROL LOGIC

STD

NC

1.4

5.2

0.8

0.5

5.1

1.3

1.2

5.2

0

0.9

1.2

0

0

0.9

1.2

2.4

0.2

0

5.9

6

VIDEO-ENV

5

HI-FI-ENV

10

KEY

B

9

KEY

A

19

HI-FI-H.SW

18

VIDEO-H.SW

CFG AMP-OUT

82 TV_A_MUTE

81 VCR_A_MUTE

POWER_FAIL_L

17

ENV

-CMP-IN

98 AMP-VCC

99 ANALOG VCC

100 DEW

50 TAB SW

49 OSD-VSS

REEL-T

CAP-FG

AMP-VSS

DRUM-FG

DRUM-PG

AMP-VREFOUT

AMP-VREFIN

C

CTL-

CTL+

AMP C

CTL AMP-OUT

70

IIC-DA

TA

2

62

B

58

H/C-SYNC

59

V-

SYNC

57

NUA

55

VHOLD

53

OSD-VCC

52

SD-IN(M

ONI)

VSS

CLKSEL

OSC-IN2

OSC-OUT2

NUB

X-OUT(12MHz)

X-IN(12MHz)

VCC

XC_OUT(32KHz)

XC_IN(32KHz)

RESET-L

REC

LED

T-

REC

LED

TV

-POWER

VCR-POW

ER

EXT

-MUTE

21

LDM-FWD

20

LDM-R

VS

16

HEAD.AM

P.

SW

15

COLOR

ROT

AR

Y

13

DUMMY

-V

.SYNC

12

CAP-LIM

IT

11

CAP-FW

D

7

AFT(MONI)

8

AFT(REC)

BOT

EOT

MSSEN-A

MSSEN-B

66

CAP

FULL

65

V-

REC-ST

-H

23

SENS

LED

72

IIC-DA

TA

1

71

IIC-CLK1

75

AGC(REC)

64

R

63

G

CAP-PWM

DRUM-PWM

74

JUST

CLOCK

REEL-S

60

OSD

OUT1

56

CVIN

54

HLF

SER

VICE

14

REMOCON-IN

69

SP-H

73

IIC-OFF

67

YC

DOC/XO

CTL

69

TRICK

PB-H

22

DEGAUSS_H

32 RENT_H

31 ON-TIMER LED

33 INPUT_SELC

CENTER

LED

REC-H/EE-M

/PB-L

73

FF/REW

-L

83 SP/LP/EP-H

TUNER_CONTROL

48 CM_ADV_AUDIO/AV2

CM_ADV_VIDEO/AV1

E/V_MASK/PLA

Y_LED

84 CA/MA_SEL

2.5

NC

0

0

5.1

MOTOR_GND

CAP/M/F/R

0

5.1

0

0.1

5.0

FROM/TO CHROMA

TO AUDIO AMP

FROM/TO TV POWER

FROM/TO IN/OUT

FROM/TO DEFLECTION

5

6

7

8

10

11

9

X-RAY_TEST

This schematic

applies to the

following models

only:

TVBR1342

TVBR1942

PROVISIONAL

0

0

0

0

0

0

R.SIGNAL

G.SIGNAL

CAPSTAN AFC SIGNAL

CYLINDER AFC SIGNAL

CYLINDER APC SIGNAL

TUNER VIDEO SIGNAL

VERTICAL SIGNAL

HORIZONTAL SIGNAL

B.SIGNAL

TO SHEET 9

TO SHEET 16

TO SHEET 13

TO SHEET 12

TO SHEET 17

TO SHEET 10

TO SHEET 14

  5 REC/PB

      2V  20

µ

s/div

  8  REC/PB

       1V  10ms/div

  7 REC/PB

      1V  50ns/div

  6  REC/PB

       1V  5ms/div

    9 PB

      1V  2ms/div

 11 REC/PB

      1V  10ms/div

  10   REC/PB

        1V  0.5ms/div

Summary of Contents for TVBR1342Z

Page 1: ...odel Line C Product Year 2000 Published by Technical Publications Zenith Electronics Corporation 201 James Record Road Huntsville Alabama 35824 1513 May 2000 Printed in U S A CN DG 5k Model Series TVBR1342Z CONTENTS General Information 1 Servicing 2 Parts 3 Exploded views 4 Schematics 5 TVBR1942Z TVBR2542Z ...

Page 2: ... pipe conduit etc and the exposed metallic parts one at a time Measure the AC voltage across the combination of 1500 ohm resistor and 15 mfd capacitor Reverse the AC plug by using a non polarized adaptor and repeat AC voltage measurements for each exposed metallic part Voltage measured must not exceed 0 75 volts RMS This corresponds to 0 5 milliamp AC Any value exceeding this limit constitutes a p...

Page 3: ...ating H V Shut Down The X Ray protect line also monitors CRT ANODE HIGH VOLTAGE MEASUREMENT PROCEDURE Each screen size has its own safe Anode Voltage and shutdown voltage Critical Safety Components designated with shading in the component parts list are designed to operate the CRT at a safe operating Anode voltage and provide proper shutdown thresholds If replacement of any of these components are...

Page 4: ......

Page 5: ...R SUPPLY CIRCUIT 5 1 13 19 Interconnect Diagram 5 1 13 19 Main Micro Block Diagram 5 2 13 19 Audio Block Diagram 5 3 13 19 Video Block Diagram 5 4 25 Interconnect Diagram 5 5 25 Main IC Block Diagram 5 6 25 Audio IC Block Diagram 5 7 25 Video IC Block Diagram 5 8 13 19 Primary Power Circuit 5 9 13 19 Deflection Circuit 5 10 13 19 Main Microprocessor Circuit 5 11 13 19 Chroma Circuit 5 12 13 19 Hea...

Page 6: ......

Page 7: ... 01 5A ch INTERMEDIATE FREQUENCY Picture IF Carrier Frequency 45 75 MHz Sound IF Carrier Frequency 41 25 MHz SOUND INTERMEDIATE FREQUENCY 4 5 MHz MAXIUM OUTPUT POWER 1 5W Model TVBR1342Z 1 5W Models TVBR1942Z 2 5W Models TVBR2542Z SPEAKER 8 ohm Models TVBR1342Z TVBR1942Z 16 ohm x 2 Models TVBR2542Z POWER SOURCE AC 120V 60Hz All Models POWER CONSUMPTI0N 70W Models TVBR1342Z 86W Models TVBR1942Z 120...

Page 8: ...65mm high density AUDIO TRACK 1 Track F FWD TIME Approx 3 40 with T 120 cassette REW TIME Approx 2 50 with T 120 cassette TAPE SPEED SP 33 35mm sec LP 16 67mm sec SLP 11 12 mm sec INPUT LEVEL Video 1 0Vp p 75ohm unbalanced Audio 300mV 50k ohm unbalanced OUTPUT LEVEL Video 1 0Vp p 75ohm unbalanced Audio 300mV 1k ohm unbalanced WEIGHT 27 6 lbs Models TVBR1342Z 48 7 lbs Models TVBR1942Z 67 1 lbs Mode...

Page 9: ...ECTRICITY BECAUSE IT CONTAINS HIGH VOLTAGE BEFORE ATTEMPTING TO REMOVE OR REPAIR ANY PCB UNPLUG THE POWER CORD FROM THE AC SOURCE 1 2 3 Remove the Anode Cap Refer to REMOVAL OF ANODE CAP Disconnect the following connector CP801 Remove the CRT PCB in the direction of arrow Fig 1 2 Front Cabinet 1 3 VCR BLOCK Refer to Fig 1 3 1 2 3 4 Fig 1 3 Front Cabinet CRT PCB 1 VCR Block UP TO RELEASE 2 Remove t...

Page 10: ... 2 Remove the Deck Shield Plate in the direction of arrow A Disconnect the following connectors CP1004 CP1005 CP1006 CP4001 CP4002 and CP4003 Remove the Deck Chassis in the direction of arrow B Remove the screw 3 Remove the Bottom Shield in the direction of arrow C 2 1 2 2 1 1 3 C B A Bottom Shield Fig 1 4 Deck Shield Plate Deck Chassis Syscon PCB DECK SHIELD PLATE DECK CHASSIS AND BOTTOM SHIELD R...

Page 11: ... 2 3 4 Remove the PCB Holder in the direction of arrow A Remove the 3 screws 1 Disconnect the following connectors CP810 and CP820 Remove the Main PCB in the direction of arrow B 2 1 Fig 1 1 Front Cabinet 1 2 CRT PCB Refer to Fig 1 2 CAUTION BEFORE REMOVING THE ANODE CAP DISCHARGE ELECTRICITY BECAUSE IT CONTAINS HIGH VOLTAGE BEFORE ATTEMPTING TO REMOVE OR REPAIR ANY PCB UNPLUG THE POWER CORD FROM ...

Page 12: ...following connectors CP1004 CP1005 CP1006 CP4001 CP4002 and CP4003 Remove the Deck Chassis in the direction of arrow 1 7 JACK PLATE AND SYSCON PCB Refer to Fig 1 7 1 2 3 4 5 6 7 Remove the screw 1 Remove the Syscon PCB in the direction of arrow A Remove the 2 screw 2 Remove the nut 3 Remove the washer 4 Unlock the 2 supports 5 Remove the Jack Plate in the direction of arrow B Jack Plate Deck Holde...

Page 13: ...Chassis Main Chassis Cassette Side L Cassette Side R Locker R Fig 2 4 2 5 CASSETTE SIDE L R Refer to Fig 2 5 Unlock the 4 supports 1 and then remove the Cassette Side L R 1 Screw Torque 5 0 5kgf cm 2 2 FLAP LEVER TAPE GUIDE R Refer to Fig 2 2 NOTE When you install the Cassette Side R be sure to move the Locker R after installing Cassette Side L Cassette Side R 1 1 1 Locker R 1 Fig 2 5 Move the Cas...

Page 14: ...nsion Band Ass y Unlock the support 3 and remove the Tension Holder Remove the SS Brake Spring Remove the SS Arm Brake 1 2 3 4 5 6 7 8 1 2 1 Loading Motor Ass y Link Lever Main Chassis ï Screw Torque 5 0 5kgfïcm Fig 2 7 2 8 SENSOR COVER L3 Refer to Fig 2 8 Unlock the support 1 and remove the Sensor Cover L3 1 Deck PCB BOT Link Ass y B Dumper Spring 3 3 1 2 2 Tension Adjust Tension Band Ass y Tensi...

Page 15: ...ock the 2 supports 2 and remove the Cassette Opener Remove the Pinch Roller Block Pinch Roller Arm Spring Pinch Roller Lever Ass y and P5 3 Arm Ass y 1 2 3 4 1 2 2 P5 Spring Cassette Opener P5 3 Arm Ass y Pinch Roller Block Pinch Roller Lever Ass y Main Chassis Fig 2 12 A Pinch Roller Arm Spring ï Screw Torque 5 0 5kgfïcm Fig 2 12 B 2 13 A C HEAD Refer to Fig 2 13 A Remove screw 1 Remove the A C H...

Page 16: ... Unit 1 2 3 Screw Torque 5 0 5kgf cm Fig 2 16 2 17 MIDDLE GEAR MAIN CAM Refer to Fig 2 17 A Remove the Polyslider Washer 1 then remove the Middle Gear Remove the E Ring then remove the Main Cam P5 Cam and Pinch Roller Cam Remove the Polyslider Washer 2 then remove the Joint Gear 1 2 3 Capstan DD Unit Capstan Belt 1 1 1 Fig 2 18 1 Clutch Ass y Ring Spring Coupling Gear Clutch Lever 2 2 2 15 AHC ASS...

Page 17: ...oading Gear Spring 2 When you install the Clutch Actuator install as shown in the circle of Fig 2 19 C Refer to Fig 2 19 C Fig 2 19 C Clutch Actuator NOTE Do not touch the roller of Guide Roller Fig 2 20 Loading Gear Holder Inclined T P4 Cover Guide Roller Inclined S 1 2 3 4 4 Guide Roller 2 20 INCLINED S T ASS Y Refer to Fig 2 20 Unlock the support 1 and remove the P4 Cover Remove the screw 2 Unl...

Page 18: ...e will be heard as the voltage is discharged Flip up the sides of the Rubber Cap in the direction of the arrow and remove one side of the support Refer to Fig 3 2 2 GND on the CRT Screwdriver Alligator Clip Support CRT GND on the CRT Rubber Cap CRT Support Fig 3 2 3 After one side is removed pull in the opposite direction to remove the other NOTE Take care not to damage the Rubber Cap INSTALLATION...

Page 19: ... Fig 4 1 1 2 3 4 5 Loosen the screw 1 Remove the Convergence Purity Magnet in the direction of arrow A Loosen the screw 2 Remove the 3 Wedges Remove the Deflection Yoke in the direction of arrow B Wedge Wedge Deflection Yoke Convergence Purity Magnet 2 1 A B Fig 4 1 INSTALLATION Install new Deflection Yoke in reverse steps of REMOVAL NOTE After adjusting the purity and the convergence tighten the ...

Page 20: ...ency Generator Front Loading Switch Frequency Modulation Frequency Sub Carrier Forward Generator Ground High Pass Filter I K L M N O P R S H SW Hz IC IF IND INV KIL L LED LIMIT AMP LM LDM LP L P F LUMI M MAX MINI MIX MM MOD MPX MS SW NC NR OSC OPE PB PB CTL PB C PB Y PCB P CON PD PG P P R REC REC C REC Y REEL BRK REEL S REF REG REW REV RVS RF RMC RY S CLK S COM S DATA SEG SEL SENS SER SI SIF SO SO...

Page 21: ...ration Transistor Tracking Track Playback Test Point Unregulated Volt Voltage Controlled Oscillator Video Intermediate Frequency Vertical Pulse Voltage Display Video Playback Variable Resistor Video Recording Visual Search Fast Forward Visual Search Rewind Voltage Super Source Vertical Synchronization Voltage Tuning Crystal Luminance Chrominance CM152 2 13 SERVICING ...

Page 22: ...he center position NOTE Also can be adjusted by pressing the ATR button for more than 2 seconds during PLAY VOL MIN 5 POWER ON total hours and PLAY REC total hours are displayed on the screen Refer to the PREVENTIVE CHECKS AND SERVICE INTERVALS CONFIRMATION OF USING HOURS Can be checked of the INITIAL DATA of MEMORY IC Refer to the NOTE FOR THE REPLACING OF MEMORY IC VOL MIN 6 VOL MIN 1 Initializa...

Page 23: ...e Clean the rubber and parts which the rubber touches Replace when rolling becomes abnormal Clean the Head CONFIRMATION OF HOURS USED POWER ON total hours and PLAY REC total hours can be checked on the screen Total hours are displayed in 16 system of notation NOTE The confirmation of hours used will not be possible if clock has been set To reset clock either unplug AC cord and allow at least 5 sec...

Page 24: ...rizontally Clean the full erase head in the same manner Refer to the figure below Audio Control Head 2 TAPE RUNNING SYSTEM When cleaning the tape transport system use the gauze moistened with isopropyl alcohol 3 CYLINDER Wrap a piece of chamois around your finger Dip it in isopropyl alcohol Hold it to the cylinder head softly Turn the cylinder head counterclockwise to clean it in the direction of ...

Page 25: ...t DATA has been entered turn POWER off return to STANDBY MODE to finish DATA input 3 4 5 6 7 8 The unit will now have the correct DATA for the new MEMORY IC Enter DATA SET mode by setting VOLUME to minimum While holding down VOLUME button on front cabinet press key 6 on remote control simultaneously ADDRESS and DATA should appear as FIG 1 INIT 00 83 0010 0003 POWERON PLAY REC ADDRESS DATA ADDRESS ...

Page 26: ...ll blink Again step through the DATA using SET or until required DATA value has been selected Pressing ENTER will take you back to ADDRESS for further selection if necessary Repeat steps 3 to 6 until all data has been checked When satisfied correct DATA has been entered turn POWER off return to STANDBY MODE to finish DATA input Enter DATA SET mode by setting VOLUME to minimum While holding down VO...

Page 27: ...rque Brake Torque S Reel T Reel Ass y 868 10005 Brake Torque T Reel Ass y 868 10006 VSR Torque Brake Torque S Reel 868 10007 868 10008 Reel Disk Height Adjustment Tentelometer PREPARATION FOR SERVICING How to use the Servicing Fixture 1 2 3 4 Unplug the connector CP757 and CP353 then remove the TV VCR Block from the set Remove the Operation PCB from the set then connect it with the Syscon PCB If n...

Page 28: ...scon PCB to the CRT PCB with the cable 852 10053 Remove the Operation PCB from the set then connect it with the Syscon PCB If necessary connect CP4202 Front A V Jack Input Terminal Short circuit between TP1001 and Ground with a Jumper cable Refer to MAJOR COMPONENTS LOCATION GUIDE The EOT BOT and Reel Sensor do not work at this moment At that time the STOP EJECT button is available to insert and e...

Page 29: ...isk Height Adjustment Jig 868 10008 A Cut Position Fig 1 2 B B Tension Adjust 1 3 CONFIRMATION OF PLAYBACK TORQUE AND BACK TENSION TORQUE DURING PLAYBACK Load a video tape T 120 recorded in standard speed mode Set the unit to the PLAY mode Install the tentelometer as shown in Fig 1 3 Confirm that the meter indicates 20 2gf in the beginning of playback 1 2 ï USING A CASSETTE TYPE TORQUE TAPE 904 00...

Page 30: ...Mechanism is adjusted precisely at the factory Adjustment is not necessary as usual When you replace the parts of the tape running mechanism because of long term usage or failure the confirmation and adjustment are necessary 2 1 GUIDE ROLLER Playback the VHS Alignment Tape 940 00053 Refer to SERVICING FIXTURE AND TOOLS Connect CH 1 of the oscilloscope to TP4001 Envelope and CH 2 to TP1002 SW Pulse...

Page 31: ...ller Refer to item 2 1 Confirm and adjust the Audio Control Head Refer to item 2 2 Connect CH 1 of the oscilloscope to TP4001 CH 2 to TP1002 and CH 3 to HOT side of Audio Out Jack Playback the VHS Alignment Tape 940 00556 Refer to SERVICING FIXTURE AND TOOLS Press and hold the Tracking Auto button on the remote control more than 2 seconds to set tracking to center Set the X Value adjustment driver...

Page 32: ...SM ADJUSTMENT PARTS LOCATION GUIDE 5 6 7 8 9 10 1 2 3 4 1 Tension Adjust 2 Tension Arm 3 Guide Roller 4 P1 Post 5 Audio Control Head 6 7 8 9 10 X value adjustment driver hole P4 Post T Brake Spring T Reel S Reel CM152 2 24 SERVICI NG ...

Page 33: ...king Auto button 6 5H 6 5H Fig 2 1 B CH 2 CH 1 CH 1 CH 2 Fig 2 1 A 2 BASIC ADJUSTMENTS 2 2 VCO FREERUN 1 2 3 4 5 6 7 8 Place the set with Aging Test for more than 10 minutes Receive the VHF HIGH Disconnect the Antenna while receiving the VHF HIGH and set to the Noise screen Once turn off the Power and turn on the Power again Approxi 3 seconds later input the Antenna again For TVBR13 1942Z connect ...

Page 34: ... normal 2 11 SUB BRIGHTNESS 1 2 3 4 5 Receive the black pattern RF Input Activate the adjustment mode display of Fig 1 1 and press the channel button 13 on the remote control to select BRIGHTNESS Press the VOL UP DOWN button on the remote control until the screen begin to shine Receive the black pattern Audio Video Input Press the INPUT SELECT button on the remote control to set to the AV mode The...

Page 35: ...to Fig 2 4 B A TV 00 OSD 15 Fig 2 4 110 2 12 SUB CONTRAST For TVBR2542Z Only 1 2 3 4 5 6 Activate the adjustment mode display of Fig 1 1 and press the channel button 14 on the remote control to select CONTRAST Press the VOL UP DOWN button on the remote control until the white color level is adjusted to 300 10NIT Press the INPUT SELECT button on the remote control to set to the AV mode Activate the...

Page 36: ... 1942Z ELECTRICAL ADJUSTMENTS 3 ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE SYSCON TU001 FOCUS VOLUME SCREEN VOLUME FB401 CP351 VR502 FH503 TP1001 CP1003 TP1002 TP4001 J801 TP801 TP803 CRT CM152 2 28 SERVICI NG ...

Page 37: ...TVBR 2542Z ELECTRICAL ADJUSTMENTS 3 ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE VCR SECTION SYSCON PCB CP602 TU601 TP1001 TP1002 J4202 TP4201 J4201 TP4001 CM152 2 29 SERVICING ...

Page 38: ...TVBR 2542ZELECTRICAL ADJUSTMENTS TV SECTION T501 VR502 J801 CRT PCB FB401 FOCUS VOLUME SCREEN VOLUME MAIN PCB CM152 2 30 SERVICING ...

Page 39: ...justments in section 4 1 1 2 3 4 5 Receive the green raster pattern from color bar generator Adjust the pair of purity magnets to center the color on the screen Adjust the pair of purity magnets so the color at the ends are equally wide Move the deflection yoke backward to neck side slowly and stop it at the position when the whole screen is green Confirm red and blue colors Adjust the slant of th...

Page 40: ......

Page 41: ...l Identifier to use the Component parts list Notes The following information is for Models in and out of warranty To Order Parts voice 1 888 3 ZENITH fax 1 888 6 ZENITH Address ZENITH NATIONAL PARTS SALES AND DISTRIBUTION CENTER P O Box 240007 Huntsville AL 35824 6407 CM152 PARTS 3 1 MODEL INDENTIFIER TVBR1342Z A TVBR1942Z B TVBR2542Z C KEY ...

Page 42: ...E ABC 129 819 10002 CORD CLIP UL CO AB 130 857 10347 PLATE SI STEEL 2 C 131 857 10355 PANEL FRONT C 132 814 10165 PLATE JACK C 133 841 10092 HOLDER FBT C 134 841 10118 HOLDER CRT WIRE B 201 NSP SCREW TAP TITE P BRAZIER AC 201 NSP SCREW TAPPING B0 TRUSS C 202 NSP SCREW TAP TITE S BRAZIER B 202 NSP SCREW TAP TITE P BRAZIER A 202 NSP SCREW TAPPING B0 TRUSS A 203 NSP SCREW TAP TITE P BRAZIER C 203 NSP...

Page 43: ...008 LOCKER R2 ABC 366 NSP SPRING PACK ABC 367 812 10096 BRACKET TOP ABC 368 882 10010 SPRING CASS EARTH ABC 369 NSP SPRING P R ARM ABC 501 NSP SCREW TAP TITE S PAN 2 6x10 ABC 502 NSP SCREW TAP TITE S BIND 2 6x8 ABC 503 NSP SCREW TAP TITE S BIND 2 6x6 ABC 504 NSP SCREW TAP TITE B PAN 2 6x6 ABC 505 NSP SCREW WASHER A M2 6x8 ABC 506 NSP SCREW WASHER B M2 6x4 ABC 507 NSP SCREW PAN M2x6 ABC 508 NSP SCR...

Page 44: ...074 822 10400 CAP CERAMIC 0 1 UF 25V C C1076 822 11486 CAP CERAMIC 220 PF 50V C C1102 822 11112 CAP ALUMI ELECTRO 330 UF 10V C C1103 822 11105 CAP ALUMI ELECTRO 1000 UF 10V AB C301 822 10496 CAP CERAMIC 0 0047UF 50V C C350 822 11457 CAP ALUMI ELECTRO 100 UF 16 V C C351 822 11334 CAP ALUMI ELECTRO 0 1 UF 50 V AB C351 822 11335 CAP ALUMI ELECTRO 2 2 UF 50V C C352 822 11505 CAP ALUMI ELECTRO 33 UF 25...

Page 45: ...V AB C4048 822 11406 CAP CERAMIC 0 01 UF 25V C C4048 822 10422 CAP CERAMIC 0 01 UF 50V ABC C4049 822 11423 CAP CERAMIC 180 PF 50V AB C4050 822 11486 CAP CERAMIC 220 PF 50V C C4050 822 10442 CAP CERAMIC 0 01 UF 50V ABC C4051 822 10422 CAP CERAMIC 0 01 UF 50V AB C4052 822 11406 CAP CERAMIC 0 01 UF 25V C C4052 822 10442 CAP CERAMIC 0 01 UF 50V ABC C4053 822 10422 CAP CERAMIC 0 01 UF 50V C C4054 822 1...

Page 46: ...612 822 11503 CAP ALUMI ELECTRO 220 UF 6 3V AB C612 822 11443 CAP ALUMI ELECTRO 470 UF 10V ABC C613 822 10400 CAP CERAMIC 0 1 UF 25V C C614 822 10422 CAP CERAMIC 0 01 UF 50V C C615 822 11419 CAP CERAMIC 0 001 UF 50V ABC C616 822 10422 CAP CERAMIC 0 01 UF 50V AB C617 822 10422 CAP CERAMIC 0 01 UF 50V ABC C618 822 11418 CAP CERAMIC 100 PF 50V C C620 822 11456 CAP ALUMI ELECTRO 47 UF 6 3V ABC C621 82...

Page 47: ...4399A C CD351 823 10106 CORD CONNECTOR CH27080A AB CD351 823 10206 CORD CONNECTOR CH27090A AB CD352 823 10204 CORD CONNECTOR CH12435A ABC CD4001 811 10027 CORD JUMPER 2L061501 AB CD501 811 10028 CORD AC 0R614909 C CD501 811 10038 CORD AC 0R614908 C CD602 910 10015 CORD EIS CONNECTOR CH01408A C CD613 910 10018 CORD CONNECTOR CH27088A C CD757 823 10111 CORD CONNECTOR CH2A014A AB CD757 823 10207 CORD...

Page 48: ...1SS133T 77 ABC D523 903 10390 DIODE SILICON 1SS133T 77 C D524 903 10390 DIODE SILICON 1SS133T 77 C D525 903 10390 DIODE SILICON 1SS133T 77 C D526 903 10390 DIODE SILICON 1SS133T 77 ABC D528 903 10394 DIODE ZENER MTZJ5 6B T 77 ABC D529 903 10390 DIODE SILICON 1SS133T 77 C D530 903 10390 DIODE SILICON 1SS133T 77 ABC D601 903 10390 DIODE SILICON 1SS133T 77 AB D602 903 10483 DIODE ZENER MTZJ8 2B T 77 ...

Page 49: ...0 UH A L603 820 10611 COIL 47 UH C L605 820 10626 COIL 1 UH AB L605 820 10617 COIL 1 UH AB L607 820 10616 COIL 12 UH C L607 820 10628 COIL 15 UH C L608 820 10554 COIL 100 UH AB L610 820 10612 COIL 56 UH C L610 820 10560 COIL 100 UH ABC L612 820 10620 COIL 6 8 UH C L613 820 10558 COIL 2 2 UH AB L801 820 10557 COIL 100 UH C L801 820 10554 COIL 100 UH ABC M101 941 10031 MOTOR LOADING MXN13FB11H AB M2...

Page 50: ...ON 2SC4217 D E RAC C R1001 863 11562 RESISTOR CARBON 3 3K OHM 1 4W AB R1001 863 11508 RESISTOR CARBON 3 3K OHM 1 8W C R1002 863 11470 RESISTOR CARBON 120 OHM 1 4W AB R1002 863 11496 RESISTOR CARBON 120 OHM 1 8W C R1003 863 10464 RESISTOR CARBON 82K OHM 1 10W AB R1003 863 11627 RESISTOR CARBON 82K OHM 1 8W C R1004 863 10451 RESISTOR CARBON 1K OHM 1 10W AB R1004 863 11491 RESISTOR CARBON 1K OHM 1 8W...

Page 51: ...C R414 863 11656 RESISTOR METAL 3 3K OHM 1 6W AB R414 863 11617 RESISTOR CARBON 18K OHM 1 8W ABC R415 863 11585 RESISTOR METAL 2 2 OHM 1 2W C R416 863 11487 RESISTOR METAL 6 8K OHM 1 6W AB R416 863 11627 RESISTOR CARBON 82K OHM 1 8W C R417 863 11645 RESISTOR CARBON 470 OHM 1 2W B R417 863 11569 RESISTOR CARBON 330 OHM 1 2W C R418 863 11643 RESISTOR CARBON 2 2 OHM 1 2W C R419 863 11645 RESISTOR CAR...

Page 52: ... 1 8W C R4034 863 11670 RESISTOR CARBON 820 OHM 1 10W AB R4034 863 11626 RESISTOR CARBON 820 OHM 1 8W C R4036 863 11606 RESISTOR CARBON 47K OHM 1 10W AB R4036 863 11513 RESISTOR CARBON 47K OHM 1 8W C R4039 863 10543 RESISTOR CARBON 22K OHM 1 10W AB R4039 863 11509 RESISTOR CARBON 33K OHM 1 8W C R4041 863 10463 RESISTOR CARBON 6 8K OHM 1 10W BC R4044 863 10401 RESISTOR CARBON 8 2K OHM 1 10W A R4044...

Page 53: ...M 1 2W C R601 863 10567 RESISTOR CARBON 2 2K OHM 1 4W AB R601 863 11502 RESISTOR CARBON 2 2K OHM 1 8W C R602 863 10522 RESISTOR CARBON 220 OHM 1 10W AB R602 863 11501 RESISTOR CARBON 220 OHM 1 8W C R603 863 10522 RESISTOR CARBON 220 OHM 1 10W AB R603 863 11501 RESISTOR CARBON 220 OHM 1 8W C R604 863 11611 RESISTOR CARBON 75 OHM 1 10W C R605 863 10458 RESISTOR CARBON 220K OHM 1 10W AB R605 863 1161...

Page 54: ...RBON 100 OHM 1 10W AB R667 863 11498 RESISTOR CARBON 1 5K OHM 1 8W C R670 863 10451 RESISTOR CARBON 1K OHM 1 10W C R671 863 10485 RESISTOR CARBON 1 5K OHM 1 10W C R672 863 10460 RESISTOR CARBON 470 OHM 1 10W C R673 863 10534 RESISTOR CARBON 4 7K OHM 1 10W C R674 863 10462 RESISTOR CARBON 1 8K OHM 1 10W B R676 863 10451 RESISTOR CARBON 1K OHM 1 10W A R676 863 11491 RESISTOR CARBON 1K OHM 1 8W AB R6...

Page 55: ... SKHVBED010 ABC SW798 885 10045 SWITCH TACT SKHVBED010 ABC SW799 885 10045 SWITCH TACT SKHVBED010 A T401 895 10114 TRANS HORIZONTAL DRIVE 305Y001 B T401 895 10088 TRANS HORIZONTAL DRIVE 305Y002 C T401 895 10124 TRANS HORIZONTAL DRIVE 5013001 ABC T4001 820 10561 COIL BIAS OSC 1626007 A T501 895 10125 TRANSFORMER SWITCHING 81290154 B T501 895 10126 TRANSFORMER SWITCHING 8129015S C T501 895 10128 TRA...

Page 56: ......

Page 57: ...HANICAL EXPLODED VIEW 204 204 204 204 L503 V801 112 J801 PCB110 CRT PCB 202 202 202 212 121 202 105 203 104 103 101 108 106 107 PCB030 OPERATION PCB 205 102 205 111 SP351 115 TVBR1342Z Only 110 A CM152 4 1 EXPLODED VIEW ...

Page 58: ... 201 133 A 212 213 215 215 217 212 129 PCB070 MAIN PCB 216 216 216 216 L503 V801 112 PCB110 CRT PCB 134 112 134 128 J801 PCB030 OPERATION PCB 111 SP302 110 204 205 103 104 131 105 206 108 106 107 111 SP301 110 204 129 B 102 126 204 204 101 CM152 4 2 EXPLODED VIEW ...

Page 59: ...124 A 117 126 127 125 208 201 206 TU601 128 126 FB401 207 126 118 206 201 123 118 119 PCB010 SYSCON PCB 203 210 210 130 129 211 210 203 203 120 TVBR 13 1942Z MECHANICAL EXPLODED VIEW CM152 4 3 EXPLODED VIEW ...

Page 60: ...B 203 203 203 117 PCB010 SYSCON PCB 201 TU601 119 201 208 118 209 206 132 207 210 214 PCB140 IICBUS PCB 123 A 120 127 211 206 206 202 109 TVBR2542Z MECHANICAL EXPLODED VIEW CM152 4 4 EXPLODED VIEW ...

Page 61: ... 361 359 368 357 366 306 366 358 365 351 363 323 324 362 353 320 335 319 349 318 336 328 512 314 508 313 502 H5002 511 509 329 330 502 502 PCB550 DECK PCB ASS Y 303 AA AD AD AD AD AA AD AD AA AA AB AB AD AD BA AA 352 503 503 367 501 356 317 369 309 355 300 505 334 AA UN4001 M2003 510 M101 364 CM152 4 5 EXPLODED VIEW ...

Page 62: ...ECK EXPLODED VIEW AB 302 M2001 511 340 514 341 343 511 503 345 339 342 504 332 346 311 333 346 312 331 514 344 AA AA AA AD AD AA AA AA AA AA AC AA 307 354 326 327 322 513 350 308 337 AA 325 AD AA AD 300 CM152 4 6 EXPLODED VIEW ...

Page 63: ......

Page 64: ......

Page 65: ...RT V801 ANODE FOCUS SCREEN DY S801 FOCUS SCREEN FB401 FBT CP501 2 1 IF 5V AGC SCL SDA 30V NC NC NC NC CP353 CD351 SP OUT SOUND OUT FRONT VIDEO IN FRONT AUDIO IN SOUND GND GND GND CP1004 VCC 5V FG VCO GND I LIMIT MOTOR GND CTL CAP M F R UN4001 CD1002 DRIVE CONTROL CYL FG CYL PG CYL B CYL GND CYL DRIVE MICRO MOTOR M2003 FG PG GND GND PG FG FFC CYL PG CYL B CYL FG CYL GND CYL DRIVE VCC CP1006 VCC LDM...

Page 66: ... 3 CYL FG 1 CYL PG CP1005 4 CTL CP1004 1 4 2 1 4 2 REEL SENS Q1001 REEL SENS Q1005 POWER FAIL DC X_RAY SDA SCL OSD_R CTL SD_VIDEO CTL V REC_ST_H VD OSD_G AFT_M OSD_B OSD_BLK HD Y C AUDIO HEAD AMP TV CAPSTAN DD UNIT MICRO MOTOR TV_POWER_H FF REW L 97 73 CTL AMP OUT Q1004 FF REW_SW 18 VIDEO H SW H SW J701 AUDIO L VIDEO 4 2 1 3 FRONT_VIDEO FRONT_AUDIO VCR_POWER_H TV 17 ENV_CMP_IN COMP Q4204 TV POWER ...

Page 67: ...A IC601 M61203BFP 57 62 1 64 26 VIF AMP APC DET BLACK STRETCH GAMMA LOCK DET CHROMA TRAP CHROMA BPF BRIGHT DRIVE AMP 5 16 15 14 CLAMP 10 35 36 34 31 60 IF AGC 63 48 DELAY ADJ 56 VCO RF AGC VIDEO DET AFT VIDEO MUTE DEFEAT AFT OUT CLAMP VIDEO TONE DELAY 55 5 7Vreg 41 RESET 42 33 39 46 13 POWER ON CONTROL RGB MATRIX CONTRAST HPF ACC KILLER DET ACC DET CHROMA APC DET DEMODULATOR VCXO VCO ADJ 32 HV BLK...

Page 68: ...PHA REC FM EQ FM MOD P R AGC AMP KIL FM AGC DELAY PB FM EQ PB PHASE EQ P R C LPF GCA B UP AMP ACC AMP Main CONV 3 58M BPF2 AUTO BIAS P R KIL B D PB AMP 3 58M BPF1 DOUBLE LIM FM DEM SUB LPF V I CONV P R Y LPF YNR COMB N L DEEM NC1 Y C MIX SYNC SEP VCA CLAMP 1 2 FBC Chara INS 6dB P R P R V AGC T4001 CLAMP EQ AMP LINE AMP MUTE ALC SP LP EP H INPUT_SEL TRICK_PB H EE H DOC_XO_CTL REC EE PB C ROTARY H S...

Page 69: ...EG 8V UNREG 8V AT 12V GND GND AT 13V UNREG 8V UNREG 8V POWER FAIL DC H_PLUSE X RAY TEST SOUND B DEGAUSS_H ACL V OUT V FEEDBACK GND H_OUT SOUND B DEGAUSS_H V OUT V FEEDBACK GND TCX328 VMX192 B OUT AGC_M INTELLGENT MONI SDA SCL IIC_OFF GND CP602 CP4201 NC NC NC NC TU601 TUNER PACK IF 30V 5V SDA SCL AGC U IN 11 10 1 3 5 6 7 8 9 2 4 CUT_OFF CUT_OFF G OUT CD1001 CD4001 10 11 9 8 7 6 5 FROM TM101 OS753 ...

Page 70: ... R WC DC DETAL ENH NL EMPHA REC FM EQ FM MOD P R AGC AMP KIL FM AGC DELAY PB FM EQ PB PHASE EQ P R C LPF GCA B UP AMP ACC AMP Main CONV 3 58M BPF2 AUTO BIAS P R KIL B D PB AMP 3 58M BPF1 DOUBLE LIM FM DEM SUB LPF V I CONV P R Y LPF YNR COMB N L DEEM NC1 Y C MIX SYNC SEP VCA CLAMP 1 2 FBC Chara INS 6dB P R P R V AGC T4001 CLAMP EQ AMP LINE AMP MUTE ALC SP LP EP H INPUT_SEL TRICK_PB H EE H DOC_XO_CT...

Page 71: ... DET CHROMA TRAP CHROMA BPF BRIGHT DRIVE AMP 5 16 15 14 CLAMP 10 35 36 34 31 60 IF AGC DELAY ADJ VCO RF AGC VIDEO DET AFT VIDEO MUTE DEFEAT AFT OUT CLAMP VIDEO TONE DELAY 55 5 7Vreg 41 RESET 42 33 39 46 13 POWER ON CONTROL RGB MATRIX CONTRAST HPF ACC KILLER DET ACC DET CHROMA APC DET DEMODULATOR VCXO VCO ADJ 32 HV BLK VERTICAL COUNT DOWN V RAMP 29 17 HORIZONTAL COUNT DOWN H VCO AFC 2 AFC 1 7 6 RGB...

Page 72: ...1005 4 CTL CP1004 1 4 2 1 4 2 REEL SENS Q1005 REEL SENS Q1001 POWER FAIL POWER_FALL_ DC SDA SCL OSD_R CTL SD_VIDEO CTL V REC_ST_H VD OSD_G AFT_M OSD_B OSD_BLK HD Y C AUDIO HEAD AMP IN OUT TV CAPSTAN DD UNIT MICRO MOTOR TV_POWER H FF REW L 97 73 CTL AMP OUT Q1004 FF REW_SW 18 VIDEO H SW H SW J701 AUDIO L VIDEO 4 2 1 3 FRONT_VIDEO FRONT_AUDIO VCR_POWER_H TV Q4204 TV POWER SW 82 TV_A_MUTE TV_A_MUTE 2...

Page 73: ...3 0 0022 2KV uF C513 0 1 250V uF C512 0 001uF C509 P L C528 0 022 uF C560 0 0022 2KV pF C517 820P 2KV pF C514_1 0 0027 2KV pF C530 0 0033 125V uF C529 0 0022 125V uF C527 0 1 pF C505 470pF 500V R553 39K 1 2W R532 12K 1 4W R502 22 1 2W R503 3 3K 1 4W R500 2 7M 1 2W 10 R554 22K 1 2W R510 120K 1 2W R504 120K 1 2W R513 390 1 4W R506 2 2K R533 18K 1 4W R505 P L R523 P L R515 10K 1 4W C520 470 16V uF C5...

Page 74: ... R454 47K P L R490 68K 1 4W R401 470 R460 100 1 4W R416 82K R413 P L R414 18K R417 PROV R419 P L R421 P L R402 47K R453 120K 1 4W R423 10K 1 4W R456 4 7K 1 2W R410 P L C422_1 1 250V uF C433_2 P L C407 1000 25V uF C406_1 100 35V uF C408 22 50V uF C431 10 250V uF C405 1 50V uF Q405 2SC2271 H DRIVE W811 W893 W847 W892 W816 W838 W857 W813 W831 W837 W897 W890 W807 W860 Q402 2SB892 DRIVER L401 4 7mH 090...

Page 75: ...A_MUTE X_RAY CTL CTL C_ROTARY DUMMY_V SYNC VCR_A_MUTE TAB_SW V REC_ST_H TV_A_MUTE COMP SP LP EP H INPUT_SEL CAP_FG LM LM CYL_FG HD CYL_PG X RAY_TEST LDM_F LDM_R VD EOT BOT AFT_M SCL SDA CENTLED CTL OSD_R OSD_G CTL OSD_B LM OSD_BLK LM RESET AT 5V_BACKUP AT 5V INPUT_SEL VCR_POWER_H TV_POWER_H TV_POWER_H TAB_SW VCR_POWER_H IIC_OFF TV_POWER_H C_ROTARY REC_LED T REC_LED H SW KEY_A KEY_B REMOCON_IN CAP_...

Page 76: ...48 0 1 50V uF C659 47 16V uF C655 47 16V uF C624 47 16V uF C632 1 50V uF Q604 2SD400E REG Q603 2SC2120Y REG Q606 2SD863F REG Q605 2SD400E REG Q602 2SC2120Y REG Q612 2SC2412K SYNC SW W888 W801 W848 W829 W886 W878 W885 W850 W874 W827 W894 W876 W887 W865 W872 W871 Q608 2SA1037AK CUT OFF L603 100uH Q611 DTC114EKA POWER FAIL SWITCH Q609 DTC114EKA POWER ON SWITCH D617 MTZJ6 8B D616 MTZJ6 8B D610 MTZJ6 8...

Page 77: ...52 53 54 55 56 57 58 59 6 60 61 62 63 64 65 66 67 68 69 7 70 71 72 73 74 75 76 77 78 79 8 80 81 82 83 84 85 86 87 88 89 9 90 91 92 93 94 95 96 97 98 99 L4004 2623003 15 6KHZ TRAP 1 2 3 4 6 TP4001 CP4001_1 TOC C04X B1 1 2 3 4 TU_AUDIO P CON 5V FRONT_AUDIO SP LP EP H INPUT_SEL TRICK_PB H EE H GND P CON 5V FRONT_AUDIO FRONT_VIDEO Y C_AUDIO Y C_VIDEO SP LP EP H TRICK_PB H EE H P CON 5V V REC_ST_H C_RO...

Page 78: ... AMP IC 1 2 3 4 5 6 7 8 C351 2 2 50V uF C354 2200 10V uF C301 0 0047 uF C353 0 1 uF R357 5 6K R359 47K R353 68K R352 4 7K C356 10 16V uF C355 10 16V uF W855 W803 SP_OUT SOUND SOUND_GND TV_A_MUTE TV_POWER_H AUDIO_OUT SOUND B GND SOUND_GND 0 0 8 2 3 5 3 4 3 9 5 1 0 3 S802 FROM TO IN OUT FROM TV POWER FROM CHROMA FROM MICRO This schematic applies to the following models only TVBR1342 TVBR1942 AUDIO S...

Page 79: ... 2 7K 1 4W R814 390 R815 390 R816 390 R813 4 7K R812 4 7K R811 4 7K Q805_1 2SC4217 GREEN AMP Q806_1 2SC4217 RED AMP Q804_1 2SC4217 BLUE AMP L801 100uH CP801 TS 80P 02 V1 1 2 TP802 TP803 TP801 GND CUT_OFF G OUT B OUT R OUT HEATER H_GND 180V H_GND H_GND SCREEN CP851A SBJU20003A M546 A7A FROM DEFLECTION FROM DEFLECTION GND 0 0 0 0 GND 132 9 132 5 132 8 104 1 132 5 2 8 2 5 132 1 2 9 2 5 132 3 2 8 2 5 ...

Page 80: ...IED 5 16 TVBR2000 SHEET 16 P L See parts list for part description PROV Provisional 13 19 Deck Circuit CP101 52044 0445 1 2 3 4 Q101 RPT 38PB113 BOT SENSOR S105 S106 S103 S104 S101 S102 SYSCON SERVO VCC BOT LDM LDM 5 1 0 FROM TO M101 LOADING MOTOR This schematic applies to the following models only TVBR1342 TVBR1942 TO SHEET 11 ...

Page 81: ...2 3 4 SOUND_GND SOUND SP_OUT AT 5V INT MONI B OUT IIC_OFF SDA SCL T REC_LED REC_LED GND P CON 5V KEY_B KEY_A REMOCON_IN TV_POWER_H Y C_AUDIO Y C_VIDEO FRONT_AUDIO FRONT_VIDEO CD351 CD757 NC NC FROM TO CONTROL PANEL GND SOUND OUT SOUND GND FRONT AUDIO IN FRONT VIDEO IN GND SP OUT FROM TO MICRO TEST POINT FROM TO CONTROL PANEL 0 Y C_AUDIO 4 5 SDA SCL GND 0 3 6 0 0 B OUT P CON 5V GND Y C_VIDEO GND AT...

Page 82: ...6K R773 2 7K R772 1 5K R777 1 5K R776 1K R771 1K R778 820 R775 820 R351_1 22 1 4W R350_1 22 1 4W R766 10 1 4W R793 270 R754 270 R761 270 D793 SLZ 936C 11 S T1 REC OTR D791 SLZ 936C 11 S T1 T REC D792 SLZ 936C 11 S T1 POWER PLAY C755_1 220 6 3V uF H E H E J701_1 JPJ3811 01 430 FRONT AV JACK 1 2 3 4 CD757 CH2A020A 1 10 2 3 4 5 6 7 8 9 J351 HSJ2630 010070 HEADPHONE JACK 1 2 3 4 5 6 7 L005 HF57T18 5 1...

Page 83: ...25V uF C505 0 22 250V uF C527 470P 500V pF C517 820P 2KV pF C549 0 033 uF C554 0 0022 uF C503 0 001 500V uF C502 0 001 500V uF C512 0 001 uF C522 0 0027 2KV uF C516 470P 500V pF C509 0 027uF C515 0 0012 uF C519 470P 500V pF R516_1 150 1 4W R513_1 120 1 4W R500 2 7M 1 2W R515 10K R506 2 2K R541 5 6K R532 12K R533 2 7K R552 10K R514 150 R504 270K 1 2W R509 10K R523 10K R511 10K R503 3 3K 1 4W R553 3...

Page 84: ...V uF C432 0 1 100V uF C412 22P 500V pF C430_1 0 001 1KV uF C428_1 0 01 1 6KV uF C426 470pF 2KV C417 470 500V pF C434 0 15 uF C423 0 56 250V uF C416 P L C439 220P uF C402 0 001 B R417 470 1 2W R460 100 1 4W R419 P L R490 220K 1 4W R418 2 2 1 2W R422 10K R423 10K 1 4W R424 10K R453 150K 1 4W R421 P L R462 2 2K 1 2W R467 1 1 2W R456 4 7K 1 2W R412 1K C405 2 2 50V uF C407 2200 25V uF C403 10 50V uF C4...

Page 85: ...P_CTL CENTLED OSD_BLK CTL CYL_DRIVE AT 5V BACKUP V REC_ST_H DOC_XO_CTL REC EE PB TRICK_PB H EE H CTL AT 5V UCON POWER_FAIL DC C_ROTARY MOTOR_GND DUMMY_V SYNC EXT_A_MUTE COMP VCR_A_MUTE V REC_ST_H INPUT_SEL C SYNC V SYNC H SW DOC_XO_CTL X_RAY_TEST REC EE PB SD_VIDEO SP LP EP H TRICK_PB H EE H VCR_A_MUTE TAB_SW TV_A_MUTE SP LP EP H LDM_F LDM_R LM LM HD VD AFT_M CAP_FG SCL SDA EOT BOT OSD_R CYL_FG OS...

Page 86: ...H L608 100uH L603 100uH D612 MTZJ6 8B D608 MTZJ6 8B D609 MTZJ6 8B D613 MTZJ6 8B D614 MTZJ6 8B D615 MTZJ6 8B D602 MTZJ8 2C D618 1SS133 D617 1SS133 D616 1SS133 D605 11ES1N D607 1SS133 D601 1SS133 D604 1SS133 D606 1SS133 IIC_OFF DEGAUSS_H 8 7VREF POWER_FAIL DC 5 7VREF AT 5 7VREF PCON VD OSD_R OSD_G OSD_B OSD_BLK SDA SCL AFT_M VCR_POWER_H TU_VIDEO HD X_RAY_TEST TV_POWER_H Y C_AUDIO CHROMA_VIDEO TU_AUD...

Page 87: ...72 73 74 75 76 77 78 79 8 80 81 82 83 84 85 86 87 88 89 9 90 91 92 93 94 95 96 97 98 99 CP4001_1 TOC C04X B1 1 2 3 4 CP4003 TMC T02X E1 1 2 T4001 1626007 COIL BIAS OSC 1 2 3 4 5 6 CP4002 52045 0645 1 2 3 4 5 6 Q4003 DTA124ES SW TU_AUDIO P CON 5V SP LP EP H INPUT_SEL FRONT_A_IN_L GND REAR_A_IN_R P CON 5V FRONT_A_IN_L FRONT_VIDEO_IN REAR_A_IN_R REAR_VIDEO_IN SD_VIDEO Y C_AUDIO GND SP LP EP H TRICK_P...

Page 88: ...303 CH14399A B301 BL01RN1 A63 Q350 2SC2412K TV_A MUTE SW C354 1000 25V uF C356 0 0056 uF R353 68K R359 47K R356 10K 1 4W C351 0 1 50V uF C352 33 25V uF C350 100 16V uF C355 2 2 50V uF W912 W840 W811 W884 W816 W909 W908 W847 CP303 TID X04P Z1BK 1 2 3 4 SOUND_L SP_OUT_L SOUND_GND SOUND B AUDIO_OUT SOUND_GND TV_POWER_H TV_A_MUTE GND SP_OUT_R SOUND_R SOUND_L SP_OUT_L FROM TO POWER FROM TO IN OUT FROM ...

Page 89: ...E AMP Q801 2SC4075 YAC RED AMP C811 P L C812 680pF C810 P L C807 100pf C808 0 0022 2KV uF R829 2 7K 1 4W R812 270 R811 270 R828 2 7K 1 4W R810 270 R817 4 7K R819 4 7K R830 2 7K 1 4W R821 4 7K W824 W828 W830 W833 W827 W835 W836 W825 W829 W832 L801 100uH TP805 TP806 TP804 GND_A GND_A GND_A GND_A GND_A 180V 21 20 19 NC NC FROM CHROMA CUT_OFF FROM DEFLECTION ACCESSORY FOCUS 7 8 7 3 117 7 7 8 7 3 123 9...

Page 90: ...ERS SPECIFIED 5 26 TVBR2000 SHEET 26 P L See parts list for part description PROV Provisional 25 Deck Circuit S105 S106 S103 S104 S101 S102 Q101 RPT 38PB113 BOT SENSOR CP101 52044 0445 1 2 3 4 FROM TO MICRO M101 LOADING MOTOR VCC BOT LDM LDM 5 1 0 This schematic applies to the following model only TVBR2542 TO SHEET 21 ...

Page 91: ...R4205 1K R4207 75 C4206 10 16V uF W864 W892 W807 W845 L4205 100uH D4206 MTZJ13B D4203 MTZJ6 8B D4201 MTZJ5 6B D4202 SB10 03A3 D4205 LFB 01L TP4201_1 JWF 50K 1 V OUT SP_OUT_L FRONT_A_IN_L FRONT_VIDEO_IN SOUND_L AT 5V UCON REMOCON_IN TV_POWER_H T REC_LED SOUND_GND REC_LED KEY_B KEY_A VCR_A_MUTE REC_LED Y C_AUDIO T REC_LED KEY_A KEY_B REMOCON_IN TV_POWER_H EXT_MUTE EXT_A_MUTE P CON 9V FRONT_VIDEO_IN ...

Page 92: ...VBED010 CH UP D793 SLZ 936C 11 S T1 REC OTR D791 SLZ 936C 11 S T1 T REC D792 SLZ 936C 11 S T1 POWER PLAY H E H E J701_1 JPJ3811 01 430 FRONT AV JACK 1 2 3 4 L001 HF57T18 5 10 10 CD351_1 CH27080A 1 2 3 4 5 6 7 CD757 CH2A014A 1 10 2 3 4 5 6 7 8 9 C755_1 220 6 3V uF C779 0 001 uF C751 100pF C752 0 1 uF C781 0 001 uF R778 820 R773 2 7K R774 5 6K R772 1 5K R777 1 5K R776 1K R775 820 R766 100 1 2W R793 ...

Page 93: ...MPONENTS ARE IDENTIFIED BY THE SYMBOL REPLACE ONLY WITH PART NUMBERS SPECIFIED 5 29 TVBR2000 SHEET 29 A B C D E F G 1 2 3 4 5 6 7 8 9 10 P L See parts list for part description PROV Provisional 13 19 Main PCB Top Layout ...

Page 94: ...C1060 C1061 R1044 R1045 R1017 C1028 R1029 C1065 C1029 R1028 R1006 C640 R625 R628 C4049 R4078 C1062 C625 R611 R609 C639 R626 R656 R657 R655 R624 R631 C647 R659 R660 C653 R635 R636 R651 R1024 R1019 Q1024 R1049 R1051 C1017 C1014 R662 R608 C623 R1077 R4016 R1002 C627 C660 C658 R647 Q1023 R1039 C1072 R1064 C661 R646 R643 R652 R648 R649 R642 R641 C1063 R1011 C1002 R1003 C1005 R1018 R1010 C1066 R1046 R10...

Page 95: ...66 R761 R793 R754 W001 R773 R774 W002 C781 C779 R775 R776 R777 C752 C751 R351_1 R350_1 W811 W802 C755_1 W003 W005 W006 W007 W008 W012 R778 W815 W816 CD351_1 CD352 CD757 W004 C701 C382 W812 W805 CP101 Q101 S103 S104 S101 S102 S105 S106 J351 J701_1 SW795 SW794 SW793 SW792 SW791 SW798 SW799 SW796 SW797 SW751 OS753 D791 D793 D792 R771 R772 R766 R761 R793 R754 W001 R773 R774 W002 C781 C779 R775 R776 R7...

Page 96: ... TP806 CP801 CC802 TP805 W830 W824 W828 W829 W825 W832 L801 W811 CC004 W025 W016 CP820_1 CP810_1 W038 R509 R424 R422 R416 R414 R413 R411 R810 R817 R819 R812 R811 R821 R412 R532 R533 R552 R523 R514 R515 R506 R508 R507 R516_1 R462 R553 R444 R443 R490 R421 R419 R417 R418 R829 R828 R830 R423 R453 R442 R440 R441 R439 R456 R460 R503 R502 R554 R529 C810 C811 C807 C812 C505 R511 R504 C520 C528 C529 C522 C...

Page 97: ...CP602 W231 W221 W222 W006 W004 W088 W126 W228 W227 W225 W229 W085 W076 W074 W043 W132 W123 W173 L4004 W187 W215 W212 W013 W017 W005 W002 W117 W028 W027 W050 W061 W182 W082 W214 CP4201 CP4202_1 W160 W817 TU601 C610 IC11 01 Q1102 Q603 Q606 Q610 Q611 Q602 C1102 C652 L603 C612_1 J4201 C4211 D4206 R4239 L4205 C4220 C4206 C4207 C670 C642 C643 L601 C655 C645 C635 CF601 CF604 L613 L607 C620 D607 CF603 C65...

Page 98: ...C4029 R4033 R4028 C4065 R4029 R4019 R4026 C4066 C4041 C4038 R4047 C4027 R4034 R4032 C4025 R4008 R4013 C4002 R4007 R4072 R4012 R4027 C4020 R4020 R4011 C4074 C4006 R4010 C4005 R4003 R4002 IC4001 R4023 R4022 C4018 C4003 C4046 C4051 C4009 R4009 C4073 R4046 R4062 C4069 R4039 R4024 R4036 Q4010 R4053 R4054 R4004 R4001 R4015 R4066 C4014 C4204 C1063 W837 Q1006 R1025 C1004 R4067 R4025 C4078 R4201 R4059 R406...

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